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Diffstat (limited to 'gl/base64.h')
-rw-r--r-- | gl/base64.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/gl/base64.h b/gl/base64.h new file mode 100644 index 00000000..1f9b203e --- /dev/null +++ b/gl/base64.h | |||
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1 | /* base64.h -- Encode binary data using printable characters. | ||
2 | Copyright (C) 2004, 2005, 2006 Free Software Foundation, Inc. | ||
3 | Written by Simon Josefsson. | ||
4 | |||
5 | This program is free software; you can redistribute it and/or modify | ||
6 | it under the terms of the GNU General Public License as published by | ||
7 | the Free Software Foundation; either version 3, or (at your option) | ||
8 | any later version. | ||
9 | |||
10 | This program is distributed in the hope that it will be useful, | ||
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
13 | GNU General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU General Public License | ||
16 | along with this program; if not, write to the Free Software Foundation, | ||
17 | Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ | ||
18 | |||
19 | #ifndef BASE64_H | ||
20 | # define BASE64_H | ||
21 | |||
22 | /* Get size_t. */ | ||
23 | # include <stddef.h> | ||
24 | |||
25 | /* Get bool. */ | ||
26 | # include <stdbool.h> | ||
27 | |||
28 | /* This uses that the expression (n+(k-1))/k means the smallest | ||
29 | integer >= n/k, i.e., the ceiling of n/k. */ | ||
30 | # define BASE64_LENGTH(inlen) ((((inlen) + 2) / 3) * 4) | ||
31 | |||
32 | extern bool isbase64 (char ch); | ||
33 | |||
34 | extern void base64_encode (const char *restrict in, size_t inlen, | ||
35 | char *restrict out, size_t outlen); | ||
36 | |||
37 | extern size_t base64_encode_alloc (const char *in, size_t inlen, char **out); | ||
38 | |||
39 | extern bool base64_decode (const char *restrict in, size_t inlen, | ||
40 | char *restrict out, size_t *outlen); | ||
41 | |||
42 | extern bool base64_decode_alloc (const char *in, size_t inlen, | ||
43 | char **out, size_t *outlen); | ||
44 | |||
45 | #endif /* BASE64_H */ | ||